def div(op1, op2):
    #if op2 == 0:
    #    exit(r'除数不应为0.')
    return op1 / op2


if __name__ == r'__main__':
    print(r'请在下方输入参数：')
    a, b = int(input(r'被除数：')), int(input(r'除数：'))    
    try:
        print(r'结果（商）是：' + str(div(a, b)))
    except ZeroDivisionError:
        print(r'除数不应为0.')
